Table 6.
The numbers of patients with knee cartilage defects graded 0–3 on radiographs at follow-up. Weight bearing radiographs were graded according to Kellgren and Lawrence. Patients were grouped based on the types of procedures performed
| Subgroup 1 | Subgroup 2 | Subgroup 3 | Subgroup 4 | All patients | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cartilage repair: a | No | No | Yes | Yes | ||||||
| Ligament/meniscus surgery: | No | Yes | No | Yes | ||||||
| (n = 15/25) | (n = 27/39) | (n = 17/21) | (n = 9/13) | (n = 68/98) b | ||||||
| O c | CLc | O | CL | O | CL | O | CL | O | CL | |
| Grade 0 | 10 | 15 | 8 | 22 | 8 | 15 | 3 | 5 | 29 | 57 |
| Grade 1 | 2 | 9 | 4 | 6 | 3 | 1 | 20 | 5 | ||
| Grade 2 | 1 | 8 | 1 | 3 | 2 | 2 | 1 | 14 | 4 | |
| Grade 3 | 2 | 2 | 1 | 2 | 5 | 2 | ||||
| P-value d | 0.04 | < 0.001 | 0.03 | 0.8 | < 0.001 | |||||
a Cartilage repair was defined as: an autologous chondrocyte implantation (with a preceding biopsy), an osteochondral cylinder transfer, microfracture, or fixation of osteochondral fragment.
b Refers to the number of patients with radiographs at follow-up in relation to the number of patients at baseline.
c O: Operated knee; CL: Contra-lateral knee.
d Wilcoxon test for difference between operated and contralateral knee